In the light of another thread about JKR's private use of female pronouns for a friend who is a trans-identified man, FWR posters may be interested in Julie Bindel's interview with transsexual (his own term for himself). It's on her Substack, and as a podcast.
https://juliebindel.substack.com/p/the-first-regretter-to-speak-out
It's really interesting and perhaps gives context to JKR's choices about how she interacts with her friends.
I don't think anyone can doubt Ms Bindel's deeply-grounded feminist work for women, for feminism, and for working-class women particularly. This interview is a wonderful piece of work from her.